DIN 68763:1990-09

1 Scope and field of application
2 Concepts
      2.1 Particleboard
      2.2 Flat pressed particleboard
      2.3 Wood chipboard
3 Types of board
4 Requirements
      4.1 Dimensional tolerances
      4.2 Binders
      4.3 Flexural strength
      4.4 Transverse tensile strength
      4.5 Thickness swelling
      4.6 Moisture content
      4.7 Preservation
      4.8 Fire behaviour
5 Testing
      5.1 Dimensions
      5.2 Binders
             5.2.1 Release of formaldehyde
             5.2.2 Determining the alkali content of
                      phenolic resin particleboard by
                      calculation
             5.2.3 Determining the alkali content of
                      particleboard by testing
      5.3 Flexural strength
             5.3.1 Sampling
             5.3.2 Conditioning the test pieces
             5.3.3 Test procedure
             5.3.4 Evaluation
      5.4 Transverse tensile strength
             5.4.1 Sampling
             5.4.2 Conditioning the test pieces
             5.4.3 Test procedure
             5.4.4 Evaluation
      5.5 Thickness swelling
             5.5.1 Sampling
             5.5.2 Conditioning the test pieces
             5.5.3 Test procedure
             5.5.4 Evaluation
      5.6 Moisture content
      5.7 Timber preservation content
6 Inspection
      6.1 Internal control
             6.1.1 Scope
             6.1.2 Sampling
             6.1.3 Recording results
             6.1.4 Inspection of non-conditioned test
                      pieces
             6.1.5 Evaluation
      6.2 Third party inspection
             6.2.1 General
             6.2.2 Inspection contract and inspection mark
             6.2.3 Scope of testing
             6.2.4 Sampling and test piece dimensions
             6.2.5 Testing as part of routine inspections
             6.2.6 Inspection report
             6.2.7 Repeat testing
7 Designation
8 Marking